All-inorganic colloidal silicon nanocrystals-surface modification by boron and phosphorus co-doping

被引：58

作者：

Fujii, Minoru ^{[1
]}

Sugimoto, Hiroshi ^{[1
]}

Imakita, Kenji ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Engn, Dept Elect & Elect Engn, Nada Ku, Kobe, Hyogo 6578501, Japan

来源：

NANOTECHNOLOGY | 2016年 / 27卷 / 26期

关键词：

silicon nanocrystals; quantum dot; doping; colloid; photoluminescence; water dispersible; SIZE-DEPENDENT PHOTOLUMINESCENCE; BULK-BAND-GAP; QUANTUM DOTS; ENERGY-TRANSFER; OPTICAL-PROPERTIES; FUNCTIONALIZED SILICON; THIN-FILMS; HYDROGEN SILSESQUIOXANE; ELECTRONIC EXCITATIONS; HIGHLY-LUMINESCENT;

D O I：

10.1088/0957-4484/27/26/262001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Si nanocrystals (Si-NCs) with extremely heavily B-and P-doped shells are developed and their structural and optical properties are studied. Unlike conventional Si-NCs without doping, B and P co-doped Si-NCs are dispersible in alcohol and water perfectly without any surface functionalization processes. The colloidal solution of co-doped Si-NCs is very stable and no precipitates are observed for more than 5 years. The co-doped colloidal Si-NCs exhibit size-controllable photoluminescence (PL) in a very wide energy range covering 0.85 to 1.85 eV. In this paper, we summarize the structural and optical properties of co-doped Si-NCs and demonstrate that they are a new type of environmentally-friendly nano-light emitter working in aqueous environments in the visible and near infrared (NIR) ranges.

引用

页数：20

共 193 条

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